its because when people have a nintendo console that means there are nintendo games on it
and everyone know that they make the best games so when choosing between a nintendo game or 3rd party most people choose the nintendo game and that is why third party sales are low

if it is a new IP it will be a IP by Miyamoto
if it is not i like the idea of a star tropics game because it will be an action adventure and realistic to appeal to people who like realistic looking games but this retro game must be third person

just think they have been able to bring alot of games to the 3ds.
they must have equal amount or more coming for the wii u
this year and next they are releasing games such as luigi mansion 2, fire emblem awakening, pokemon x and y, pokemon mystery dungeon, donkey kong, monster hunter, castlevania, mario tennis, mario and luigi, animal crossing, zelda, mario party, lego city, shin megami tensei lV, soul hackers, yoshi, sonic lost world, smash bros, project x zone, monster hunter 4, pacman.
so if any of these games here along with other games such as mario kart, 3d land, new super mario bros 2, kid icarus and sticker star dont make people buy and play the 3ds I dont know what they like playing